30123312313 has 4 divisors (see below), whose sum is σ = 31433021568. Its totient is φ = 28813603060.

The previous prime is 30123312301. The next prime is 30123312341. The reversal of 30123312313 is 31321332103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30123312313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30123313313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654854593 + ... + 654854638.

It is an arithmetic number, because the mean of its divisors is an integer number (7858255392).

Almost surely, 2^30123312313 is an apocalyptic number.

It is an amenable number.

30123312313 is a deficient number, since it is larger than the sum of its proper divisors (1309709255).

30123312313 is a wasteful number, since it uses less digits than its factorization.

30123312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309709254.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 30123312313 its reverse (31321332103), we get a palindrome (61444644416).

The spelling of 30123312313 in words is "thirty billion, one hundred twenty-three million, three hundred twelve thousand, three hundred thirteen".